Home / 13,320,308.65-18,382,025.70-7,208,737.15

Finding the Fourth Proportional to 13,320,308.65, 18,382,025.70 and 7,208,737.15

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Solution

The fourth proportional to 13,320,308.65, 18,382,025.70 and 7,208,737.15 is: 9,948,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,308.65 : 18,382,025.70 = 7,208,737.15 : x
  2. Step 2: Convert to fraction form
    13,320,308.65/18,382,025.70 = 7,208,737.15/x
  3. Step 3: Cross multiply
    13,320,308.65x = 18,382,025.70 × 7,208,737.15
  4. Step 4: Simplify right side
    13,320,308.65x = 132,511,191,463,934.61
  5. Step 5: Solve for x
    x = 132,511,191,463,934.61/13,320,308.65
  6. Step 6: Final answer
    x = 9,948,057.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.